<template>
  <div style="display: flex;">
    <div :style="{width:(isCollapse?'64px':'208px')}">
      <!-- 左侧菜单栏-->
      <el-menu
          background-color="#3C82F5"
          style="width: 100%;height: 100vh;"
          text-color="#fff"
          active-text-color="#ff0"
          unique-opened
          router
          :collapse="isCollapse"
          :collapse-transition="false"
          @select="selectMenu"
      >
        <!-- 左侧菜单的顶部栏 -->
        <el-row style="padding-top: 10px;">
          <el-col :span="2"></el-col>
          <el-col :span="7" style="padding-left: 7px">
            <el-avatar src="imgs/admin/logo.png"></el-avatar>
          </el-col>
          <el-col :span="isCollapse?0:13">
            <span style="color: #fff;position: relative;top:8px;
            left: 2px;font-weight: bold;">
              智慧车辆
            </span>
          </el-col>
        </el-row>
        <el-sub-menu index="1">
          <template #title>
            <el-icon style="font-size: 21px"><User /></el-icon>
            <span>用户管理</span>
          </template>
          <el-menu-item index="/user">用户列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="2">
          <template #title>
            <el-icon style="font-size: 21px"><Van /></el-icon>
            <span>车辆管理</span>
          </template>
          <el-menu-item index="/vehicle">车辆列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="3">
          <template #title>
            <el-icon style="font-size: 21px"><Location /></el-icon>
            <span>围栏管理</span>
          </template>
          <el-menu-item index="/geofence">电子围栏</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="4">
          <template #title>
            <el-icon style="font-size: 21px"><Place /></el-icon>
            <span>调度管理</span>
          </template>
          <el-menu-item index="/application">申请列表</el-menu-item>
          <el-menu-item index="/audit">调度审核</el-menu-item>
          <el-menu-item index="/distribute">车辆分配</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="5">
          <template #title>
            <el-icon style="font-size: 21px"><MessageBox /></el-icon>
            <span>数据字典</span>
          </template>
          <el-menu-item index="/dict">字典管理</el-menu-item>
        </el-sub-menu>
      </el-menu>
    </div>

    <div :style="{width:(isCollapse?'calc(100% - 64px)':'calc(100% - 208px)')}">
      <!-- 右侧顶部条   -->
      <el-header style="background-color: #fff;height: 10vh;padding-top: 22px">
        <el-row :gutter="10">
          <el-col :span="18">
            <el-icon style="font-size: 20px;"
                     @click="changeCollapsed"><Expand /></el-icon>
          </el-col>
          <el-col :span="6" style="position: relative;">
            <el-dropdown trigger="click" style="position: absolute;right: 20px">
              <span style="font-size: 19px;font-weight: bold;">
                {{user.username}}
                <el-icon><arrow-down /></el-icon>
              </span>
              <template #dropdown>
                <el-dropdown-menu>
                  <el-dropdown-item @click="logout">退出登录</el-dropdown-item>
                </el-dropdown-menu>
              </template>
            </el-dropdown>
          </el-col>
        </el-row>
        <el-breadcrumb separator="/" style="position: relative;top: 20px;">
          <el-breadcrumb-item>首页</el-breadcrumb-item>
          <el-breadcrumb-item v-for="item in breadcrumb">{{item}}</el-breadcrumb-item>
        </el-breadcrumb>
      </el-header>
      <el-main style="height: 90vh;padding: 0;overflow-y: auto;">
        <!-- 右侧可变区域   -->
        <router-view/>
      </el-main>

    </div>
  </div>

</template>

<script setup>
import {ref} from "vue";

const isCollapse = ref(false);
const changeCollapsed = () => {
  isCollapse.value = !isCollapse.value;
}
const user = ref(getUser());
const logout = () => {
  if(confirm('您确认要退出登录吗？')){
    //清除存在localStorage中的数据
    localStorage.removeItem('user');
    localStorage.removeItem('breadCrumb');
    window.location.href = '/login';
    user.value='';
  }
}

const breadcrumb = ref(
     JSON.parse(localStorage.getItem('breadCrumb')) || ['用户管理', '用户列表']);
let map = {
  '/user': ['用户管理', '用户列表'],
  '/vehicle': ['车辆管理', '基本信息'],
  '/geofence': ['电子围栏', '围栏管理'],
  '/application': ['调度管理', '申请列表'],
  '/audit': ['调度管理', '调度审核'],
  '/distribute': ['调度管理', '车辆分配'],
  '/dict': ['数据字典', '字典管理']
}
const selectMenu = (index) => {
  breadcrumb.value = map[index];
  localStorage.setItem('breadCrumb',JSON.stringify(breadcrumb.value));
}
</script>